Solar Radiation Physical Modeling (SRPMv2)

and the Sun-Earth Radiative Connection

Supported by: J.M. Fontenla
johnf@digidyna.com or fontenla@colorado.edu
First Version: 2001/2/2
Current Version: 2010/10/15

Site still under development, some links may not work...
The SRPM current data includes a set of physical models for the main features responsible for the solar radiative output and its variations with the solar cycle.
The current set of models is one-dimensional and intended for describing the overall "radiation effective" properties of ~2x2 arc sec patches of the solar surface. For these models full-NLTE radiative transfer was computed in 50 species (currently) and their emitted spectrum is available for 10 angles at extremely high, and variable, spectral resolution (10^-6 in lines).
Three-dimensional radiative transfer calculations are ongoing, so far in the LTE and coronal approximation limits. Full-NLTE calculations are in progress for the three-dimensional models.

Photospheric-chromospheric temperature, and height, as function of pressure in the current set of models.

Charged particles (ne, np, and nion=sum(n_i)) and neutral hydrogen (na) densities as function of pressure in the current set of models.

Plasma parameters: Mean ion mass, m_ion=sum(n_i*m_i)/nion, in units of the hydrogen mass, and Ion acoustic velocity, sqrt(2*k*T/m_ion).